The urea cycle can be summarized through the following reaction:O||H2N-C-OPO3+COO-|H3N-CHCH₂COOb.O||H2N-C-NH21a Write the reactions, using structural formulas that lead to the formation of carbamoyl phosphate andits subsequent incorporation into the urea cycle. Name the enzymes and how they are activated.1+ OOCCH=CHCOO-Write the rest of the reactions that constitute the urea cycle using structural formulas. Name theenzymes that catalyze each reaction. Indicate which reactions occur in the mitochondrion and whichoccur in the cytoplasm.

When amino acids are degraded in the tissue, they release ammonia. Ammonia is toxic to the cell so…

Answered: The urea cycle can be summarized…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

The urea cycle requires all of the following components except one of them: aspartate, carbamoyl phosphate synthetase I, ATP, citrulline/ornithine transporter and isocitrate. Identify the component. Explain the sequence of urea cycle using the required components and enzymes essential for each step of the cycle.
Write the rest of the reactions that constitute the urea cycle using structural formulas. Name the enzymes that catalyze each reaction. Indicate which reactions occur in the mitochondrion and which occur in the cytoplasm.
If aspartate is labeled with deuterium D (= H-2 = 12H), answer questions a-c to determine where the label will end up in oxaloacetate after the involvement of aspartate in the urea cycle. Where does the label end up in arginosuccinate? Where is the label in fumarate? Where is the label in oxaloacetate?
Discuss the two roles of N-acetylglutamate in the urea cycle. Include relevant chemical structures and reactions. What is the regulatory function of N-acetylglutamate in the urea cycle? What is the other role of N-acetylglutamate in relationship to the urea cycle? Glutamate is the precursor for N-acetylglutamate. How is glutamate involved in the connection between the urea cycle and the CAC?
Which enzyme(s) in the urea cycle mediate(s) (an) irreversible reaction(s) (select all that apply)? O arginosuccinate synthetase arginosuccinase carbamoyl phosphate synthetase I arginase O ornithine transcarbamoylase
+ edu.au/courses/26618/quizzes/67364/take The image below shows the urea cycle. Based on the information in the image, which of the following is the most effective way of reducing the production of urea? CNH, Fumarate Arginine H₂O Arginase NH3+ C=N Arginino- succinate AMP + PP₁ NH₂ Arginino- succinase UREA CYCLE Urea ATP Argininosuccinate synthetase Ornithine H₂N H₂N 2 Citrulline Rate- limiting Ornithine 1. Carbamoyl phosphate synthase 1 N-acetyl glutamate H+ADP P₁ NH3 HCO3 ATP Carbamoyl Phosph. NH₂C-PO4 Ornithine 2. Citrulline formation P Citrulline C-NH₂ transcarbamoylase Aspartate NH₂ CYTOSOL MITOCHONDRIAL MATRIX https://canvas.uts.edu.au/assessment questions/356957/files/1562677/download? verifier=gRMPoy7VCgDrvn6QNfkZxDSsbLUwP1gRxFB3dLPj
Write an equation for the net reaction of the urea cycle.Show how the urea cycle is linked to the citric acid cycle.
Carbamoyl-phosphate synthase I is a mitochondrial enzyme which plays an important role in the urea cycle. It represents the committed step in the urea cycle. (i) Explain the reaction of carbamoyl-phosphate synthase I. (ii) Explain the regulation of urea cycle by N-acetylglutamate.
Including the carbamoyl phosphate synthetase step (CPS I) and the four steps of the urea cycle, how many ATP equivalents (phosphoanhydride bonds) are utilized to drive the formation of one urea molecule?
Citrullene is a special amino acid that is used in the urea cycle and as a precursor for synthesis of the aminoacid Arg in the body. In which category would you place citrullene? Explain.
What are the possivble oxidation product of catalase using H2O2 as the substrate? Explain in 1-3 sentences
Draw the structure of alpha-ketoglutarate that is generated in a reaction catalyzed by glutamate dehydrogenase and that is a precursor to the urea cycle. You do not have to consider stereochemistry. Assume a pH of 7.

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